Hi We Are Group 2!!!!!=] Jordan, Briana, Kristina, and Kyle
Elements: Hey guys! I'm Carbon. I LOVE to write and hang out with most jewelry. Also, I enjoy helping to clean the air. While I can be of much assistance to humans, I can also be deadly. Whenever Nitrogen comes over, we form cyanide, which is a deadly poison. I also combine with Oxygen to form carbon dioxide, which, when frozen, forms dry ice.
Hi! I'm Chlorine. I have many uses. In world war one I was used as a poison gas. I'm used as a germ killer swimming pools. I'm used in bleach and plastic pipes, as well as insecticides. I used to be used in air conditioners and refrigerators, untill it was discovered that I am a pollutant.
Hello there! I'm Platinum. I love to hang out with the jewelry. I'm used in refining oil, dental instruments, ceramics, and other electrical industries. I'm also used in glass tubes and bulbs. I'm also used in pacemakers for the human heart. Along with thin sheets to make missiles, razor blades, car parts, and my platinum compounds treat cancer.
Name of Chemical
Makes a Solution
Observations
zinc oxide
No
transparent, light blue, uniform, crystals at bottom
copper sulfate
Yes
opaque, white, uniform
sucrose
Yes
transparent, non-viscous
sodium chloride
Yes
transparent
sulfur
No
yellow, powdery, not uniform
CHEMISRTY UNIT
Kristina:
I hope we mix chemicals, but I hope that we don't cause a really bad reaction! I hope that we will see some big chemical reactions!!
Jordan:
I hope that the chemicals we mix dont cause a big reaction. Mixing chemicals is a fun thing but i hope nothing with go wrong and then we see pretty colors!!
Briana:
I hope we mix chemicals together and find out what makes them change color.
Kyle
January 14th,2008(scroll down for answers)
1.What is specific heat capacity?
2.What is the formula for turning Fahrenheit into Celcius?
3.What is thermal equilibrium?
4.What is thermal expansion?
5. Whats the difference between conduction and convection?
Answers:
1. The amount of energy needed to change the temperature.
2. C= 5/9(F-332)
3. When two object reach the same temperature.
4. The increase in volume due to the increase of temperature.
5. Conduction is through direct contact and Convection is by the movement of a liquid.
January 17th, 2008
Review Questions:
Chapter 1: Vocabulary
Physical Science: The study of matter and energy.
Scientific Method: A series of steps that scientists use to answer questions and solve problems.
January 22nd,2008
Energy- the ability to do work
Two types of energy:
Kinetic Energy-the energy of motion(speed and mass)
Potential Energy- energy an ovject has because of its position or shape(weight+weight)
Various Forms of Energy:
Thermal Energy- total energy of particles in an object
Chemical Energy-energy of a compound that changes as atoms are rearranged-potential
Electrical Energy- energy of moving elctrons-kinetic
Sound Energy-caused by an objects vibrations
Light Energy- produced by the vibrations of electrically charged by particles
Nuclear Energy- the energy associated with changes in the nucleus of an atom.
January 24th, 2008
Energy Resource-a natural resource that can be converted by humans into other forms of energy in order to do useful work.
-The distinguish between nonrenewable and renewable resources is that nonrenewable resources is a natural resource that cannot be replaced or that can replaced only over thousands or millions of years
Fossil Fuel-is a nonrenewable energy resource that forms in Earth's crust over millions of years from the buried remains of once-living organisms.
January 31st, 2008
Renewable and Nonrenewable Energy Resources:
Elements:
Hey guys! I'm Carbon. I LOVE to write and hang out with most jewelry. Also, I enjoy helping to clean the air. While I can be of much assistance to humans, I can also be deadly. Whenever Nitrogen comes over, we form cyanide, which is a deadly poison. I also combine with Oxygen to form carbon dioxide, which, when frozen, forms dry ice.
Hi! I'm Chlorine. I have many uses. In world war one I was used as a poison gas. I'm used as a germ killer swimming pools. I'm used in bleach and plastic pipes, as well as insecticides. I used to be used in air conditioners and refrigerators, untill it was discovered that I am a pollutant.
Hello there! I'm Platinum. I love to hang out with the jewelry. I'm used in refining oil, dental instruments, ceramics, and other electrical industries. I'm also used in glass tubes and bulbs. I'm also used in pacemakers for the human heart. Along with thin sheets to make missiles, razor blades, car parts, and my platinum compounds treat cancer.
CHEMISRTY UNIT
Kristina:
I hope we mix chemicals, but I hope that we don't cause a really bad reaction! I hope that we will see some big chemical reactions!!
Jordan:
I hope that the chemicals we mix dont cause a big reaction. Mixing chemicals is a fun thing but i hope nothing with go wrong and then we see pretty colors!!
Briana:
I hope we mix chemicals together and find out what makes them change color.
Kyle
January 14th,2008(scroll down for answers)
1.What is specific heat capacity?
2.What is the formula for turning Fahrenheit into Celcius?
3.What is thermal equilibrium?
4.What is thermal expansion?
5. Whats the difference between conduction and convection?
Answers:
1. The amount of energy needed to change the temperature.
2. C= 5/9(F-332)
3. When two object reach the same temperature.
4. The increase in volume due to the increase of temperature.
5. Conduction is through direct contact and Convection is by the movement of a liquid.
January 17th, 2008
Review Questions:
Chapter 1: Vocabulary
Physical Science: The study of matter and energy.
Scientific Method: A series of steps that scientists use to answer questions and solve problems.
January 22nd,2008
Energy- the ability to do work
Two types of energy:
Kinetic Energy-the energy of motion(speed and mass)
Potential Energy- energy an ovject has because of its position or shape(weight+weight)
Various Forms of Energy:
Thermal Energy- total energy of particles in an object
Chemical Energy-energy of a compound that changes as atoms are rearranged-potential
Electrical Energy- energy of moving elctrons-kinetic
Sound Energy-caused by an objects vibrations
Light Energy- produced by the vibrations of electrically charged by particles
Nuclear Energy- the energy associated with changes in the nucleus of an atom.
January 24th, 2008
Energy Resource-a natural resource that can be converted by humans into other forms of energy in order to do useful work.
-The distinguish between nonrenewable and renewable resources is that nonrenewable resources is a natural resource that cannot be replaced or that can replaced only over thousands or millions of years
Fossil Fuel-is a nonrenewable energy resource that forms in Earth's crust over millions of years from the buried remains of once-living organisms.
January 31st, 2008
Renewable and Nonrenewable Energy Resources:
Renewable:
-Solar
-Hydroelectricity
-Wind
-Geothermal
-Biomass
Nonrenewable:
-Fossil Fuels:
-Coal
-Petroleum
-Natural Gas
-Nuclear:
-Uranium
February 7th, 2008
Finding Energy
Average Speed- 1.238 m/s
Full Speed- 2.476 m/s
Kinetic Energy at the Bottom: 0.106 J
Gravitational Potential Energy at the Top: 0.012